Ruling · Vijayā Daśamī (Daśaharā) · 2027

Sunday 10 October

Boundaryin Baoding, under the Rashtriya Panchang method. Both days qualify and the rule does not say which to take. Say “contested”.

Decide it for

38°52′ N 115°28′ E · Asia/Shanghai · GeoNames 1816971

The two days

A tick is five ghaṭīs, two hours. The day time is sunrise to sunset.

Day of Saturday 9 October

Qualifies with 301 of 688 minutes. Not taken.

06:21 sunrisesunset 17:49
Śravaṇa begins 12:48:17
05:5707:5709:5711:5713:5715:5717:5719:57

301 of 688 minutes covered, the last 301

Day of Sunday 10 October

Taken. Both days qualify; the rule is silent, and this one is covered longer.

06:22 sunrisesunset 17:48
Daśamī ends 14:11:08
05:5807:5809:5811:5813:5815:5817:5819:58

469 of 686 minutes covered, the first 469

Daśamī and Śravaṇa togetherThe day time, the window the rule readsThe instant they come together or part

How it was decided

  1. 01

    Aṅga

    Daśamī runs from 11:32 on Sat 9 Oct to 14:11 on Sun 10 Oct, and Śravaṇa from 12:48 on Sat 9 Oct to 15:56 on Sun 10 Oct. They are together from 12:48 on Sat 9 Oct to 14:11 on Sun 10 Oct.

    2027-10-09T04:48:18Z → 2027-10-10T06:11:09Z

  2. 02

    Kāla

    The day time is sunrise to sunset: 06:21–17:49 on the 9th, 06:22–17:48 on the 10th.

    daytime: sunrise-to-sunset · sunrise and sunset: upper limb, 31′ + 16′

  3. 03

    Rule

    Where Daśamī touches Śravaṇa in the day time, that day is taken. Together they cover 301 of 688 minutes on the 9th and 469 of 686 on the 10th.

    Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104

  4. 04

    Tie-break

    Both days qualify and the rule marks neither. The one covered longer is ruled, as a boundary.

    priority: unstated → greater-coverage · margin 12998 s

  5. 05

    Ruling

    Vijayā Daśamī, Baoding, 2027: Sunday 10 October.

    confidence: boundary (tie-break-unstated)

Say it like this

In Baoding, Vijayā Daśamī (Dussehra) 2027 falls on Sunday 10 October. Daśamī runs from 11:32 on Sat 9 Oct to 14:11 on Sun 10 Oct and is with Śravaṇa in the day time that day, for 469 minutes. They are together in the day time on the previous day too, for 301 minutes; the rule does not say which to take, and the day they share longer is ruled: treat the date as contested.

ahargana.org/baoding/festivals/2027/vijaya-dashami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSun 10 Oct
Ahargaṇa, classicalDisc centre, no refractionSun 10 Oct
compat-drikpanchangComparison profileSun 10 Oct
No institution has a recorded ruling for Baoding.

Institutional rulings are recorded with a source address, and are never edited to agree.

The rule, as data

/rules/vijaya-dashami · ruleset 2026.3-draft

Month
Āśvina, amānta
Pakṣa · aṅga
Śukla · Daśamī
Kāla
Madhyāhna
Priority
Unstated
Tie-break
Longer coverage, as a boundary
First
With Śravaṇa in the day time

“S 10 Vijaya dasami (In Bengal it is observed as paraviddha, covering one muhurta from sunrise. In other places, if it touches Sravana naksatra in the day time it is observed on that day), Sarasvati visarjana (to be observed in naksatra Sravana), Dasahara.” Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104. The Bengal reading (paraviddha, one muhūrta from sunrise) is not applied.

The same rule, elsewhere

Twelve places, west to east. Local clock times.

PlaceDaśamī with ŚravaṇaSunrise 9thCoveredSunrise 10thCoveredRuled
Los Angeles21:48 → 23:1106:54693 min06:540 min9 Oct
Chicago23:48 → 01:1106:56682 min06:570 min9 Oct
Jersey City00:48 → 02:1107:01684 min07:020 min9 Oct
Port of Spain00:48 → 02:1105:55717 min05:550 min9 Oct
London05:48 → 07:1107:14666 min07:160 min9 Oct
Durban06:48 → 08:1105:25673 min05:24167 min9 Oct
Dubai08:48 → 10:1106:14549 min06:15236 min9 Oct
Delhi10:18 → 11:4106:18460 min06:19322 min9 Oct
Kolkata10:18 → 11:4105:31419 min05:31370 min9 Oct
Singapore12:48 → 14:1106:49366 min06:49442 min10 Oct
Sydney15:48 → 17:1106:23195 min06:21650 min10 Oct
Suva16:48 → 18:1105:4377 min05:42744 min10 Oct
Profile · tradition
pac-rp@2026.1 · smarta
Rule
vijaya-dashami@2026.3-draft
Engine · kernel
0.1.0 · de440 7eef…ea74
Boundary margin
300 s